无催化剂合成3,1-苯并氧硫杂环戊烯-4-酮/1,3-苯并二恶英-4-酮。
Catalyst-free synthesis of 3,1-benzoxathiin-4-ones/1,3-benzodioxin-4-ones.
作者信息
Muthusamy Sengodagounder, Malarvizhi Muthukumar, Suresh Eringathodi
机构信息
School of Chemistry, Bharathidasan University, Tiruchirappalli-620 024, India.
Analytical Discipline and Centralized Instrumentation Facility, Central Salt & Marine Chemicals Research Institute, Bhavnagar-364 002, India.
出版信息
Org Biomol Chem. 2021 Feb 25;19(7):1508-1513. doi: 10.1039/d0ob02543g.
An unambiguous and precise method for the synthesis of 3,1-benzoxathiin-4-ones/1,3-benzodioxin-4-ones by the reaction of propargylic alcohols and salicylic/thiosalicylic acids under a catalyst-free and open-air atmosphere is described. This strategy is found to be quite general using various 2-mercapto and 2-hydroxybenzoic acids providing benzoxathiinones/benzodioxinones in good yields.
描述了一种在无催化剂和露天气氛下，通过炔丙醇与水杨酸/硫代水杨酸反应合成3,1-苯并恶噻英-4-酮/1,3-苯并二恶英-4-酮的明确且精确的方法。发现该策略具有广泛适用性，使用各种2-巯基和2-羟基苯甲酸可高产率地得到苯并恶噻英酮/苯并二恶英酮。
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